Home / 980,842.15-1,471,281.72-270,889.03

Finding the Fourth Proportional to 980,842.15, 1,471,281.72 and 270,889.03

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Solution

The fourth proportional to 980,842.15, 1,471,281.72 and 270,889.03 is: 406,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,842.15 : 1,471,281.72 = 270,889.03 : x
  2. Step 2: Convert to fraction form
    980,842.15/1,471,281.72 = 270,889.03/x
  3. Step 3: Cross multiply
    980,842.15x = 1,471,281.72 × 270,889.03
  4. Step 4: Simplify right side
    980,842.15x = 398,554,077,987.53
  5. Step 5: Solve for x
    x = 398,554,077,987.53/980,842.15
  6. Step 6: Final answer
    x = 406,338.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.